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Merge pull request #1997 from yatch/pr/packetbuf-remaininglen

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Introduce packetbuf_remaininglen()
This commit is contained in:
Antonio Lignan 2016-12-27 22:38:14 +01:00 committed by GitHub
commit 9befc02331
2 changed files with 19 additions and 6 deletions
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10
core/net/packetbuf.c
View File

@ -184,6 +184,12 @@ packetbuf_totlen(void)
return packetbuf_hdrlen() + packetbuf_datalen();
}
/*---------------------------------------------------------------------------*/
uint16_t
packetbuf_remaininglen(void)
{
return PACKETBUF_SIZE - packetbuf_totlen();
}
/*---------------------------------------------------------------------------*/
void
packetbuf_attr_clear(void)
{
@ -196,7 +202,7 @@ packetbuf_attr_clear(void)
/*---------------------------------------------------------------------------*/
void
packetbuf_attr_copyto(struct packetbuf_attr *attrs,
struct packetbuf_addr *addrs)
struct packetbuf_addr *addrs)
{
memcpy(attrs, packetbuf_attrs, sizeof(packetbuf_attrs));
memcpy(addrs, packetbuf_addrs, sizeof(packetbuf_addrs));
@ -204,7 +210,7 @@ packetbuf_attr_copyto(struct packetbuf_attr *attrs,
/*---------------------------------------------------------------------------*/
void
packetbuf_attr_copyfrom(struct packetbuf_attr *attrs,
struct packetbuf_addr *addrs)
struct packetbuf_addr *addrs)
{
memcpy(packetbuf_attrs, attrs, sizeof(packetbuf_attrs));
memcpy(packetbuf_addrs, addrs, sizeof(packetbuf_addrs));

11
core/net/packetbuf.h
View File

@ -123,6 +123,13 @@ uint16_t packetbuf_datalen(void);
*/
uint16_t packetbuf_totlen(void);
/**
* \brief Get the total length of the remaining space in the packetbuf
* \return Length of the remaining space in the packetbuf
*
*/
uint16_t packetbuf_remaininglen(void);
/**
* \brief Set the length of the data in the packetbuf
* \param len The length of the data
@ -343,9 +350,9 @@ int packetbuf_holds_broadcast(void);
void packetbuf_attr_clear(void);
void packetbuf_attr_copyto(struct packetbuf_attr *attrs,
struct packetbuf_addr *addrs);
struct packetbuf_addr *addrs);
void packetbuf_attr_copyfrom(struct packetbuf_attr *attrs,
struct packetbuf_addr *addrs);
struct packetbuf_addr *addrs);
#define PACKETBUF_ATTRIBUTES(...) { __VA_ARGS__ PACKETBUF_ATTR_LAST }
#define PACKETBUF_ATTR_LAST { PACKETBUF_ATTR_NONE, 0 }